Watch roller and hand remover.



No. 797,999. PATENTED AUG. 22, 1905.

v v L. J. WILLIAMS.

WATCH ROLLER AND HAND RBMOVER.

APPLICATION FILED FEB. 8, 1905.

INVENTUR UNITED STATES PATENT OFFICE.

LESTER J. WILLIAMS, OF LEBANON, NEW HAMPSHIRE, ASSIGNOR TO KENDRIGK ANDDAVIS, OF LEBANON, NEW HAMPSHIRE, A FIRM.

WATCH ROLLER AND HAND REMOVER.

Specification of Letters Patent.

Patented Aug. 22. 1905.

Application filed February 8, 1905. Serial No. 244,716.

To all whom, it may concern:

Be it known that I, LESTER J. WILLIAMS, of Lebanon, in the county ofGrafton and State of New Hampshire, have invented certain new and usefulImprovements in Watch Roller and Hands Removers, of which the followingis a specification.

This invention relates to tools for separating parts of watches, and hasfor its object to provide a convenient tool of this character which maybe used to remove from the staff of a balance the disk known as theroller or to remove the hands of a watch-movement.

The invention consists in the improvements which I will now proceed todescribe and claim.

Of the accompanying drawings, forming a part of this specification,Figure 1 represents a side elevation of a tool embodying my invention.Fig. 2 represents an enlargement of Fig. 1, the handle being shown insection and partly broken away. Fig. 3 represents a side view taken froma diflerent point of view. Fig. 4 represents a section on line i 4 ofFig. 3. Fig. 5 represents a section on line 5 5 of Fig. 4:. Fig. 6represents a section on line 6 6 of Fig. 4:. Fig. 7 represents a sectionon line 7 7 of Fig. 2. Fig. 8 represents a section on line 8 8 of Fig.2. Fig. 9 represents a section similar to Fig. 8, showing a differentadjustment of the jaws. Fig. 10 represents a side view of a portion ofthe tool, showing the jaws closed upon a watch-balance staff. Fig. 11represents a perspective view of the jaw-guiding head. Fig. 12represents a perspective view of one of the jaws. Fig. 13 represents aside elevation showing a diiferent device for operating the plunger.

. The same reference characters indicate the same parts in all thefigures.

In the drawings, 15 represents ahead which is provided internally with aguide 16.

17 17 represent jaws formed to engage the roller 18 on the stalf 19 of awatch-balance or to engage the hands of a Watch-movement, each jaw beingprovided with a slide 20, formed to have an accurate sliding fit in theguide 16. Means are provided for moving the jaws simultaneously towardand from each other, the said means comprising a rotary device mountedin the head 15 and having provisions for simultaneously moving the jawseither toward or from each other. In this embodiment of my invention Iemploy a rotary stud 21, which is journaled in a bearing 22, formed inthe head 15 and extending parallel with the guide 16, the said guide andbearing being connected by a longitudinal opening 23. The stud 21 isprovided with two continuous oblique grooves 24 24, which engage pins 2525, aflixed to the jaw-shanks and projecting through the opening 23 intothe bearing 22.

To the head 15 is affixed a shank 26, in which a plunger 27 islongitudinally movable, said plunger being adapted to be projectedbetween the jaws 17.

Means are provided for securing the stud 21 against endwise movement inits bearing 22, said means being preferably such as to enable the studto be adjusted endwise to insure a uniform distance between the jaws andthe center of the pin 27. To this end I preferably employ an expansiblesplit ring or bush, ing 28, which is interposed between a shoulder 29,formed on the stud 21, and a head or thumb piece 30, detachably securedto the stud, as shown in Fig. 9. The reduced portion of the stud withinthe bushing 28 is ad apted. to rotate in the bushing, the latter havinga constant tendency to expand by its own resilience, and thusfrictional] y engage the bearing 22. This frictional engagement preventsendwise movement of the stud 21, the stud being at the sametime free torotate in the bushing28. Inassemblingthepartsthebushing28 is adjusteduntil the stud 21 has the exact longitudinal position required to holdthe jaws equidistant from the center of the plunger 17, the bushingbeing held by friction in any position to which it may be adjusted inthe bearing 22.

The pins have screw-threaded portions which are engaged with thejaw-shanks 20, as shown in Figs-8 and 9. The head 15 is provided withorifices 32 32. which are arranged to coincide with the pins 25 when thejaws are in their position of closest approach to each other, as shownin Fig. 9, the pins being inserted through the holes 32 into the jawsand into the grooves of the stud when the parts are in the position lastmentioned.

It will be seen that when the jaws are engaged with a roller, as shownin Fig. 10, and the plunger 27 is projected the pressure of the pin willforce the staff 19 outwardly from the roller. The operation of removingthe hands of a watch-movement is similarly performed, as will be wellunderstood by those skilled in the art.

In Fig. 4 I have shown as the means for projecting the plunger 27 a nut33, engaging a screw-threaded portion of the plunger 27, said nut havingan operating device 34:, Whereby it may be rotated. The said operatingdevice is preferably a small Wheel or disk aflixed by a set-screw 36 tothe nut 33, its periphery projecting through openings in the sides of anenlargement of the shank 26, as shown in Figs. 1, 2, 3, and 6. Theplunger is preferably made in sections, as shown in Fig. 4, thenut-engaging screw-thread being formed on one section,which is providedwith a shank 38, entering a socket in the other section, which is theoperative portion of the plunger. The section on which the screw-threadis formed is preferably provided at its upper portion with anenlargement 39, on which a spring 40 exerts pressure to maintain africtional connection between the threads of the plunger and the nut andprevent the nut from turning too freely. Rotation of the enlargement 89with the nut is prevented by means of a key 4.1, affixed to the shankand entering a longitudinal groove in the enlargement 39. When the nut34 is rotated backwardly, the plunger is retracted.

The sectional construction of the plunger enables the outer operativeportion thereof to be removed to permit the re-forming of itsstaff-engaging cavity in case the latter has become worn or to permitanother operative portion having a cavity of different size to besubstituted for it.

' In Fig. 13 I show as theplunger-projecting device a lever 42, pivotedat 4:3 to an car on the shank 26, said lever having a shorter arm (notshown) projecting into the shank and engaging the plunger 27. I/Vhen thelonger arm of the lever 42 is pressed toward the shank,

the plunger is projected by the shorter arm of the lever. When the leveris pressed away from the shank, the plunger is retracted.

I claim 1. A tool of the character stated, comprising a head having ajaw-guide, and a studbearing parallel with the guide and connectedtherewith by a longitudinal opening, a pair of jaws having shanks fittedto slide in the guide, and pins projecting through said opening into thebearing, a rotary stud journaled in the bearing and havingoppositely-arranged continuous oblique grooves engaging said pins andadapted to move the jaws simultaneously in opposite directions, a shankaffixed to the head, a plunger movable longitudinally in the shank andbetween the jaws, and means for projecting and retracting the plunger.

2. A tool of the character stated, comprising a jaw-guiding head, a pairof jaws having shanks fitted to slide in the guiding portion of thehead, a rotary stud journaled in the head and having oppositely-arrangedcontinuous oblique grooves engaging pins attached to the jaw-shanks,means for rotatively engaging the stud with the head in differentlongitudinal positions, a shank affixed to the head, and a plungermovable longitudinally in the shank and adapted to be projected betweenthe jaws.

3. A tool of the character stated, comprising a jaw-guiding head, a pairof jaws having shanks fitted to slide in the guiding portion of thehead, a rotary stud journaled in the head and having oppositely-arrangedcontinuous oblique grooves engaging pins attached to the jaw-shanks, andan eXpansible split bushing engaged with the stud and adapted to befrictionally engaged with the head in different positions.

4. A tool of the character stated, comprising a head having a jaw-guide,and a bearing parallel with said guide, the socket and guide beingconnected by a longitudinal opening or passage, jaws having shanksmovable in said guide, said shanks having pins projecting through saidopening into the bearing, a stud journaled in the bearing and havingoppositely-arranged continuous oblique grooves engaging said pins, ashank affixed to the head, and a plunger movable longitudinally in theshank and adapted to be projected between the jaws.

5. A tool of the character stated, eompris ing a head having ajaw-guide,and a bearing parallel with said guide, the socket and guide beingconnected by a longitudinal opening or passage, jaws having shanksmovable in said guide, said shanks having pins projecting through saidopening into the bearing, a stud journaled in the bearing, and havingoppositely-arranged continuous oblique grooves engaging said pins, asplit expansible bushing rotatively engaged with the stud andvfrictionally engaged with the bearing, a shank affixed to the head, anda plunger movable longitudinally in the shank and adapted to beprojected between the jaws.

In testimony whereof I have afiixed my signature in presence of twowitnesses.

LESTER J. WILLIAMS. Witnesses:

HENRY F. KNAPP, SCOTT SLoANn.

